Wide variety of sizes
Castle Nuts
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Original price $30.28 - Original price $33.25Original price$30.28 - $33.25$30.28 - $33.25Current price $30.28| /
10mm-1.25 Zinc Plated Class 8 Steel Fine Thread Castle Nuts
Monster Fastener10+ in stockDiameter: 10mmDiameter 2: 19mmThickness: 12mmMaterial: SteelFinish: Yellow ZincDriver Type: #17 WrenchThread Size: 1.25mm (Fine)Hardness: Class 8Ty...
View full detailsOriginal price $30.28 - Original price $33.25Original price$30.28 - $33.25$30.28 - $33.25Current price $30.28| / -
Original price $13.21 - Original price $13.21Original price$13.21$13.21 - $13.21Current price $13.21| /
7/8"-14 Zinc Plated Steel Fine Thread Castle Hex Nuts (2 pcs.)
Monster Fastener10+ in stockDiameter: 7/8"Thickness: 29/32"Material: SteelFinish: ZincDriver Type: 1-5/16" WrenchThread Size: 14 (Fine)Type: Castle NutUnslotted Thickness and ...
View full detailsOriginal price $13.21 - Original price $13.21Original price$13.21$13.21 - $13.21Current price $13.21| / -
Original price $29.17 - Original price $41.66Original price$29.17 - $41.66$29.17 - $41.66Current price $29.17| /
16mm-1.5 Zinc Plated Class 8 Steel Fine Thread Castle Nuts
Monster Fastener10+ in stockDiameter: 16mmDiameter 2: 27mmMaterial: SteelFinish: Yellow ZincDriver Type: #24 WrenchThread Size: 1.5mm (Fine)Hardness: Class 8Type: Castle NutSp...
View full detailsOriginal price $29.17 - Original price $41.66Original price$29.17 - $41.66$29.17 - $41.66Current price $29.17| / -
Original price $30.49 - Original price $32.44Original price$30.49 - $32.44$30.49 - $32.44Current price $30.49| /
8mm-1.0 Zinc Plated Class 8 Steel Fine Thread Castle Nuts
Monster Fastener10+ in stockDiameter: 8mmDiameter 2: 15mmThickness: 9.3mmMaterial: SteelFinish: Yellow ZincDriver Type: #13 WrenchThread Size: 1.0mm (Fine)Hardness: Class 8Typ...
View full detailsOriginal price $30.49 - Original price $32.44Original price$30.49 - $32.44$30.49 - $32.44Current price $30.49| / -
Original price $26.68 - Original price $38.35Original price$26.68 - $38.35$26.68 - $38.35Current price $26.68| /
16mm-2.0 Zinc Plated Class 8 Steel Coarse Thread Castle Nuts
Monster Fastener10+ in stockDiameter: 16mmDiameter 2: 27mmThickness: 19mmMaterial: SteelFinish: ZincDriver Type: #24 WrenchThread Size: 2.0mm (Coarse)Hardness: Class 8Type: Ca...
View full detailsOriginal price $26.68 - Original price $38.35Original price$26.68 - $38.35$26.68 - $38.35Current price $26.68| / -
Original price $30.87 - Original price $41.56Original price$30.87 - $41.56$30.87 - $41.56Current price $30.87| /
12mm-1.75 Zinc Plated Class 8 Steel Coarse Thread Castle Nuts
Monster Fastener10+ in stockDiameter: 12mmDiameter 2: 22mmThickness: 15mmMaterial: SteelFinish: ZincDriver Type: #19 WrenchThread Size: 1.75mm (Coarse)Hardness: Class 8Type: C...
View full detailsOriginal price $30.87 - Original price $41.56Original price$30.87 - $41.56$30.87 - $41.56Current price $30.87| / -
Original price $30.49 - Original price $32.44Original price$30.49 - $32.44$30.49 - $32.44Current price $30.49| /
10mm-1.5 Zinc Plated Class 8 Steel Coarse Thread Castle Nuts
Monster Fastener10+ in stockDiameter: 10mmDiameter 2: 19mmThickness: 12mmMaterial: SteelFinish: ZincDriver Type: #17 WrenchThread Size: 1.5mm (Coarse)Hardness: Class 8Type: Ca...
View full detailsOriginal price $30.49 - Original price $32.44Original price$30.49 - $32.44$30.49 - $32.44Current price $30.49| / -
Original price $23.11 - Original price $30.07Original price$23.11 - $30.07$23.11 - $30.07Current price $23.11| /
8mm-1.25 Zinc Plated Class 8 Steel Coarse Thread Castle Nuts
Monster Fastener10+ in stockDiameter: 8mmDiameter 2: 15mmThickness: 9.3mmMaterial: SteelFinish: ZincDriver Type: #13 WrenchThread Size: 1.25mm (Coarse)Hardness: Class 8Type: C...
View full detailsOriginal price $23.11 - Original price $30.07Original price$23.11 - $30.07$23.11 - $30.07Current price $23.11| / -
Original price $19.41 - Original price $25.23Original price$19.41 - $25.23$19.41 - $25.23Current price $19.41| /
6mm-1.0 Zinc Plated Class 8 Steel Coarse Thread Castle Nuts
Monster Fastener10+ in stockDiameter: 6mmDiameter 2: 11mmThickness: 7.5mmMaterial: SteelFinish: ZincDriver Type: #10 WrenchThread Size: 1.0mm (Coarse)Hardness: Class 8Type: Ca...
View full detailsOriginal price $19.41 - Original price $25.23Original price$19.41 - $25.23$19.41 - $25.23Current price $19.41| / -
Original price $14.26 - Original price $14.26Original price$14.26$14.26 - $14.26Current price $14.26| /
7/8"-14 Zinc Plated Steel Fine Thread Castle Hex Nuts (2 pcs.)
Monster Fastener10+ in stockDiameter: 7/8"Thickness: 29/32"Material: SteelFinish: ZincDriver Type: 1-5/16" WrenchThread Size: 14 (Fine)Type: Castle NutUnslotted Thickness and ...
View full detailsOriginal price $14.26 - Original price $14.26Original price$14.26$14.26 - $14.26Current price $14.26| / -
Original price $14.96 - Original price $14.96Original price$14.96$14.96 - $14.96Current price $14.96| /
3/4"-16 Zinc Plated Steel Fine Thread Castle Hex Nuts (3 pcs.)
Monster Fastener10+ in stockDiameter: 3/4"Thickness: 13/16"Material: SteelFinish: ZincDriver Type: 1-1/8" WrenchThread Size: 16 (Fine)Type: Castle NutUnslotted Thickness and H...
View full detailsOriginal price $14.96 - Original price $14.96Original price$14.96$14.96 - $14.96Current price $14.96| / -
Original price $17.00 - Original price $17.00Original price$17.00$17.00 - $17.00Current price $17.00| /
5/8"-18 Zinc Plated Steel Fine Thread Castle Hex Nuts (5 pcs.)
Monster Fastener10+ in stockDiameter: 5/8"Thickness: 23/32"Material: SteelFinish: ZincDriver Type: 15/16" WrenchThread Size: 18 (Fine)Type: Castle NutUnslotted Thickness and H...
View full detailsOriginal price $17.00 - Original price $17.00Original price$17.00$17.00 - $17.00Current price $17.00| / -
Original price $15.98 - Original price $15.98Original price$15.98$15.98 - $15.98Current price $15.98| /
9/16"-18 Zinc Plated Steel Fine Thread Castle Hex Nuts (5 pcs.)
Monster Fastener10+ in stockDiameter: 9/16"Thickness: 39/64"Material: SteelFinish: ZincDriver Type: 7/8" WrenchThread Size: 18 (Fine)Type: Castle NutUnslotted Thickness and He...
View full detailsOriginal price $15.98 - Original price $15.98Original price$15.98$15.98 - $15.98Current price $15.98| / -
Original price $18.65 - Original price $18.65Original price$18.65$18.65 - $18.65Current price $18.65| /
1/2"-20 Zinc Plated Steel Fine Thread Castle Hex Nuts (10 pcs.)
Monster Fastener10+ in stockDiameter: 1/2"Thickness: 9/16"Material: SteelFinish: ZincDriver Type: 3/4" WrenchThread Size: 20 (Fine)Type: Castle NutUnslotted Thickness and Heig...
View full detailsOriginal price $18.65 - Original price $18.65Original price$18.65$18.65 - $18.65Current price $18.65| / -
Original price $19.63 - Original price $19.63Original price$19.63$19.63 - $19.63Current price $19.63| /
7/16"-20 Zinc Plated Steel Fine Thread Castle Hex Nuts (12 pcs.)
Monster Fastener10+ in stockDiameter: 7/16"Thickness: 29/64"Material: SteelFinish: ZincDriver Type: 11/16" WrenchThread Size: 20 (Fine)Type: Castle NutUnslotted Thickness and ...
View full detailsOriginal price $19.63 - Original price $19.63Original price$19.63$19.63 - $19.63Current price $19.63| / -
Original price $23.94 - Original price $23.94Original price$23.94$23.94 - $23.94Current price $23.94| /
3/8"-24 Zinc Plated Steel Fine Thread Castle Hex Nuts (16 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Thickness: 13/32"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 24 (Fine)Type: Castle NutUnslotted Thickness and He...
View full detailsOriginal price $23.94 - Original price $23.94Original price$23.94$23.94 - $23.94Current price $23.94| / -
Original price $22.37 - Original price $22.37Original price$22.37$22.37 - $22.37Current price $22.37| /
5/16"-24 Zinc Plated Steel Fine Thread Castle Hex Nuts (16 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Thickness: 21/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 24 (Fine)Type: Castle NutUnslotted Thickness and He...
View full detailsOriginal price $22.37 - Original price $22.37Original price$22.37$22.37 - $22.37Current price $22.37| / -
Original price $18.10 - Original price $18.10Original price$18.10$18.10 - $18.10Current price $18.10| /
1/4"-28 Zinc Plated Steel Fine Thread Castle Hex Nuts (16 pcs.)
Monster Fastener10+ in stockDiameter: 1/4"Thickness: 9/32"Material: SteelFinish: ZincDriver Type: 7/16" WrenchThread Size: 28 (Fine)Type: Castle NutUnslotted Thickness and Hei...
View full detailsOriginal price $18.10 - Original price $18.10Original price$18.10$18.10 - $18.10Current price $18.10| / -
Original price $13.84 - Original price $13.84Original price$13.84$13.84 - $13.84Current price $13.84| /
3/4"-16 Zinc Plated Steel Fine Thread Castle Hex Nuts (3 pcs.)
Monster Fastener10+ in stockDiameter: 3/4"Thickness: 13/16"Material: SteelFinish: ZincDriver Type: 1-1/8" WrenchThread Size: 16 (Fine)Type: Castle NutUnslotted Thickness and H...
View full detailsOriginal price $13.84 - Original price $13.84Original price$13.84$13.84 - $13.84Current price $13.84| / -
Original price $14.61 - Original price $14.61Original price$14.61$14.61 - $14.61Current price $14.61| /
9/16"-18 Zinc Plated Steel Fine Thread Castle Hex Nuts (5 pcs.)
Monster Fastener10+ in stockDiameter: 9/16"Thickness: 39/64"Material: SteelFinish: ZincDriver Type: 7/8" WrenchThread Size: 18 (Fine)Type: Castle NutUnslotted Thickness and He...
View full detailsOriginal price $14.61 - Original price $14.61Original price$14.61$14.61 - $14.61Current price $14.61| / -
Original price $14.23 - Original price $14.23Original price$14.23$14.23 - $14.23Current price $14.23| /
1/2"-20 Zinc Plated Steel Fine Thread Castle Hex Nuts (8 pcs.)
Monster Fastener10+ in stockDiameter: 1/2"Thickness: 9/16"Material: SteelFinish: ZincDriver Type: 3/4" WrenchThread Size: 20 (Fine)Type: Castle NutUnslotted Thickness and Heig...
View full detailsOriginal price $14.23 - Original price $14.23Original price$14.23$14.23 - $14.23Current price $14.23| / -
Original price $13.13 - Original price $13.13Original price$13.13$13.13 - $13.13Current price $13.13| /
7/16"-20 Zinc Plated Steel Fine Thread Castle Hex Nuts (8 pcs.)
Monster Fastener10+ in stockDiameter: 7/16"Thickness: 29/64"Material: SteelFinish: ZincDriver Type: 11/16" WrenchThread Size: 20 (Fine)Type: Castle NutUnslotted Thickness and ...
View full detailsOriginal price $13.13 - Original price $13.13Original price$13.13$13.13 - $13.13Current price $13.13| / -
Original price $15.04 - Original price $15.04Original price$15.04$15.04 - $15.04Current price $15.04| /
3/8"-24 Zinc Plated Steel Fine Thread Castle Hex Nuts (12 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Thickness: 13/32"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 24 (Fine)Type: Castle NutUnslotted Thickness and He...
View full detailsOriginal price $15.04 - Original price $15.04Original price$15.04$15.04 - $15.04Current price $15.04| / -
Original price $20.05 - Original price $20.05Original price$20.05$20.05 - $20.05Current price $20.05| /
5/16"-24 Zinc Plated Steel Fine Thread Castle Hex Nuts (20 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Thickness: 21/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 24 (Fine)Type: Castle NutUnslotted Thickness and He...
View full detailsOriginal price $20.05 - Original price $20.05Original price$20.05$20.05 - $20.05Current price $20.05| /